M12 Closed-Loop Autofocus Actuator SDA03

SDA03 is a voice coil motor (VCM) for lens-moving autofocus in M12 camera modules. Hall position feedback supports closed-loop lens positioning, with 1,000 µm rated travel.

SDA03 closed-loop autofocus actuator with M12 lens interface and four terminals
Rated AF travel
1,000 µm
Lens mass
8 g
Hall accuracy
≤10 µm
Input voltage
3.3 V

Preliminary specifications for SDA03 / MTS-S364-00.

Technical Specifications

Preliminary reference values. Confirm the applicable specification revision and system requirements with MTS before design-in.

Mechanical & General
Product modelSDA03 / MTS-S364-00
Actuator typeClosed-loop autofocus voice coil motor
Lens interfaceM12 × P0.5
Outline dimensions18.3 × 18.3 × 14.15 mm
Actuator mass4.00 g max, without lens
Lens mass8 g
Rated AF travel1,000 µm
AF moving tilt≤8 arcmin
Storage period1 year
Electrical & Control
Input voltage3.3 V
Rated current≤120 mA
Maximum current150 mA
DC resistance≤24 Ω at 25°C; ≤28 Ω at 70°C
Hall accuracy≤10 µm
AF linearity≤15 µm
AF sensitivity, 10 bit1.08 µm/code (±10%)
AF sensitivity, 14 bit0.067 µm/code (±10%)
Driver compatibilityI2C-compatible AF driver
AF Calibration
0 µmBase stopper
50 µmZ1
1,050 µmZ2

Evaluation orientation: the optical axis is aligned with gravity, with the lens moving upward during evaluation.

Pin Definition
Pin 1SDA
Pin 2SCL
Pin 3GND
Pin 4VDD
Environment
Operating temperature−30 to +70°C
Operating humidity90% RH max
Storage temperature−40 to +85°C
Storage humidity90% RH max

Mechanical Drawing

Review the public preview for the outline, M12 thread, mounting features and four-pin interface.

For detailed tolerance and integration review, request the official 2D drawing and 3D STEP file from MTS.

View Drawing PDF
SDA03 mechanical drawing showing plan, section, mounting and pin views

Selection & Integration

Key considerations for evaluating SDA03 in your camera module.

Will SDA03 fit my M12 lens?

The lens interface is M12 × P0.5. Thread size alone does not establish compatibility: review lens mass, barrel dimensions, required focus travel and mounting space against the specifications and mechanical drawing.

How does closed-loop autofocus work?

The VCM moves the lens, while Hall feedback measures its position. Position control and image-based autofocus are separate functions: the camera system's autofocus algorithm determines the focus target from image information.

What is needed for control integration?

The reference specification lists a 3.3 V supply, an I2C-compatible AF driver and four terminals: SDA, SCL, GND and VDD. Request the applicable driver and interface documentation before integrating the actuator with your controller.

How can I evaluate SDA03?

Send your lens information, required travel, available space and sample quantity. Contact MTS about samples, the official 2D drawing, a 3D STEP file and evaluation requirements.

Engineering & Manufacturing

Application Areas

  • Machine Vision Cameras
  • Security Cameras
  • Video Conferencing Cameras

Discuss Your SDA03 Project

For samples, technical documentation or integration questions, send your lens information, required travel, sample quantity and project schedule.